Cut-off machine



(No Model.) 3 Sheets-Sheet 1. F. GHALLONER.

GUT-OFF MACHINE Patented May 8, 1898.

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(No Model.) v 3 sheets-sheen 2.

F. CHALLONER. GUT-0F15 MAGHINE.

3- Sheets-Sheet 3.

(No Model.)

P. GHALLONER.

GUT-OFF MACHINE.

Patented Maj/8,1898

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l UNITED STATES PATENT EETCE.

FRANK CHALLONER, OF OSHKOSH, VISCONSIN.

CUT-OFF MACHINE.

SPECIFICATION forming part of Letters Patent No. 603,498, dated May 3, 1898.

Application tiled December 14, 1894. Serial No. 531,819. (No model.)

To @ZZ whom, t may concern:

Be it known that I, FRANK OHALLONEE, of Oshkosh, in the county of Winnebago and State of Wisconsin, have invented certain new and useful Improvements in Cut-Off Machines; and I do hereby declare that the following is a full, clear, and eXact description of the invention, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which forma part of this specification.

The main object of my invention is to facilitate cutting timber to certain desired lengths for various purposes, and incidentally .thereto to automatically grasp and hold a number of sticks or pieces of timber firmly together in proper position and to regulate and control the movements of the carriage.

It consists of certain novel features in the construction and arrangement of the component parts of the machine, hereinafter particularly described, and pointed out in the claims.

In the accompanying drawings like letters designate the same parts in the several figures.

Figure 1 is a plan view of my improved machine, certain parts being shown in section or broken away to more clearly disclose the cony struction. Fig. 2 is a vertical section in a plane indicated by the line 2 2, Fig. 1. Fig. 3 is a vertical section lengthwise of the carriage in aplane indicated by the line 3 3, Fig.1. Fig. 4t is a horizontal section on the line t 4, Fig. 3, showing the clamp-actuating cylinder and associated parts in plan view; and Fig. 5 is a vertical longitudinal section of said cylinder and its associated valve-case and valve.

A designates the saw, mounted upon a horizontal arbor a., which is provided with a pulley d'.

B represents one end of a reciprocating carriage,which is provided with tru ck-wheels b b, guided and arranged to travel on a suitable track or Way b parallel with the plane of the saw. It will be understood that the opposite end of the carriage, which is not shown, is to be supported in like manner by a parallel rail and similar truck-wheels.

v C is a cylinder placed between and parallel with the carriage-ways and provided with a piston c, which is connected by a rod c with the front or opposite side of the carriage.

c2 is a valve having connections with opposite ends of the cylinder C and a steam or other fluid-pressure supply connection c3. The valve proper, which may be of the ordinary slide'or piston type, is connected by a rod c4 with an arm on a 1ock-shaftc5,extend ing along the front side of the machine parallel with the carriage and provided in a position Within convenient reach of the operator with a lever-arm or handle c6.

D is a cylinder like or similar to the steam or carriage-actuating cylinder C,placed alongside thereof and parallel therewith. Itis provided with a piston d, which is connected by a rod d with the front side rail of the carriage-frame. The opposite ends of this cylinder, which is filled with oil or other suitable liquid, are connected by two by-passes or pipes d2 and d3, which are provided with op' positely-opening check-valves d4 d4 and with cut-off or regulating valves d5 d5. By this means the advance and return movements of the carriage may be adjusted as desired and its movement in either direction checked at the proper point.

The carriage is provided at suitable intervals with rollers E E, placed crosswise therein or parallel with the carriage-ways and journaled at the ends in the side rails of the carriage-frame. They are each connected by bevel-gears c and c with and are turned on the upper side toward the saw by a shaft c2, arranged lengthwise of the carriage and having any suitable driving connection. (Not shown.)

F is a platform placed over the saw arbor and frame on the opposite side of the saw from the carriage in position to support and catch the overhanging ends of sticks of timber carried by the carriage. It has on the upper side, parallel with the plane of the saw, a stop-block or gage f for determining the length of the blocks or sections into which the sticks of timber are to be cut. This gage may be made laterally adjustable, if desired. To the front side of the adjacent end of the carriage Bis attached by means of a U -shaped arm g a follower or pusher Gin line with the front rail of the carriage-frame. This serves to support the projecting ends of the sticks IOO of timber as they are cut off by the saw and to thrust them forward on the platform F out of the way when they are severed.

H is a top clamp pivoted to and supported by the overhanging arm of an angular lever h above the end rail of the carriage next to the saw. The lever Z1.k is fulcrumed to a bracket attached to the rear side rail of the carriage-frame and is connected at its lower end, opposite that to which the clamp is attached, by a link h with the piston j of cylinder J (shown in detail in Fig. 5) and attached to the under side of the carriage, as shown in Figs. 2 and 3, parallel with the carriage-ways. under side with a valve-case J', which has Lelescoping steam or other Huid-pressure supply and discharge connections j' and' jz, respectively. The valve-case is provided with a piston-valve ji, which has a passage through it and stands normally as shown in Fig. 5. In this position the front end of the cylinder communicates through passage j* and said valve with the exhaust-pipe 3'2 and the rear end of the cylinder through passage j; and the valve-case with the supply-pipe j', thus holding the piston j in the position in which it is shown in Fig. 5. The valve-rod js is linked to one arm of a bell-crank lever 7c, the other arm of which engages a U-shaped bar K, hinged or pivoted at its ends in a line parallel therewith and with the carriage-ways to the under side of the carriage. jl is a stop arranged in the path of said valve-rod to insure restoring the valve js to its normal position when the carriage returns to its startingpoint.

L designates an automatic trip or valveactuating device mounted upon and movable endwise of a` squared bar M, which is secured at its ends in the side rails of the carriage parallel with the carriage-Ways. It 'consists of an upwardly-projecting arm having a sleeve loosely fitted on the bar M and connected below it with a weight m2 by a cord m, passing over a sheave m', and of an angular lever fulcr-umed at or near its elbow to the base of said arm and connected at its upper end with said arm by a pivot-rod and compression-spring Z2 and at its lower end by a link Z3 with t-he bar K, said link having a sliding connection at its lower end with said bar, as seen in Fig. 3. The arm Zhas on the under side of its sleeve an extension Z4, and the bracket by which the pulley m is carried has an extension m3, projecting into the path of said extension Z4 yand serving as a stop for the trip L, whereby the latter is engaged and held in the position shown vin Fig. 2 on the rear side of the carriage when the latter returns to its normal position. By the term front as herein used I intend to designate that side of the machine on which the operators lever c is located.

My improved machine operates as follows: A number of sticks of timber being placed upon the carriage and resting upon the roll- This cylinder is provided on the ers E E are` moved endwise, while the carriage4 stands in the position shown in Figs. l and 2, against the stop or gage f. The operator then through the lever c6 and its connections, hereinbefore explained, starts the carriage forward toward the saw. As the carriage advances the trip L is held by the weight m2 against the stop m3 until it is engaged by the adjacent stick or sticks of timber, and sufficient pressure is exerted thereon to force the lever Z' backward against the tension of spring Z2. This operates through the link Zs to lift the bar K and through it and its connections, above mentioned, to shift valvej3 to the left, as shown in Fig. 5, thereby reversing the supply and exhaust connections of cylinder J. When this takes place, the piston j will obviously be thrust to the right, and, acting through lever h, will force the clamp II down upon the sticks of timber upon the carriage, binding them firmly togetherand holding them in place while they are severed by the saw. `The piston j and the clamp will be held in the positions last mentioned until the carriage in its return movement causes the extension Z4 on the trip to engage with the stop mg. When this takes place, the timberon the carriage will be moved out of engagement with the trip, or the pressure thereon will be removed, so that the spring Z2 can thrust the upper end of lever Z forward and through its connections restore the valve jg to its original posi tion, whereupon the position of the piston j will be reversed and the clamp H will be raised thereby out of engagement with the timberon the carriage. In case saidspring fails from any cause to restore said valve to its normal position this will be eected by the engagement of the valve-rod j with stop j?.

' The several sticks or pieces of timber being now free are moved endwise by the rollers E E against the gage-stop f, and the operations above mentioned are repeated until the sev- `eral sticks of timber are all cut into the desired lengt-hs. With each advance stroke of the carriage-actuating piston c the control- -ling-piston cZ forces the oil or other retarding liquid contained in cylinder D through the pipe or passage d2, and with-the return stroke of the piston c such oil or liquid is forced back through t-he passage cZ3. By the adjustment of the valves d5 the area of the by-passages may be more or less restricted and the advance and return'movements of the carriage regulated as desired.

In places where the use of steam or other fluid-pressure is impracticable or inconvenient for actuating the clamping device other mechanical means, such as the weight of the clamp itself or a separate weight or spring, maybe employed, and the details of construction may be variously modified Within the spirit and intended scope of my invention.

I claim- 1. In a cut-oft' machine the combinationl with the saw, of a reciprocating carriage provided with a vertically-movable clamp and a horizontally-movable arm or part'constructed and arranged When the carriage moves forward to press and hold the timber against the front side of the carriage, and means for operating said clamp controlled by said arm,sub stantially as and forthe purposes set forth.

2. In a cut-off machine the combination with a saw and reciprocating carriage, of a vertically-movable clamp connected with and overhanging the carriage, a cylinder attached to the carriage, provided With a piston which is connected with said clamp and having a telescoping fiuid-pressure-supply connection a trip mounted upon the carriage and connected With the valve controlling the admission of the fluid-pressure medium to said piston, substantially as and for the purposes set forth.

3. In a cut-off machine the combination with the saw and a reciprocating carriage, of a clamp connected with said carriage, a cylinder attached to said carriage and provided With a piston which is connected With said clamp, a valve controlling the admission and exhaust ports of said cylinder, a verticallymovable bar hinged or pivoted to the carriage parallel with its line of travel and connected with the stem of said valve, and a trip movably mounted upon said carriage and having a sliding connection With said bar, substantially as and for the purposes set forth.

4. In a cut-off machine the combination with the saw and a reciprocating carriage, of a clamp connected with said carriage, a cylinder attached to the carriage and provided with a piston which is connected With said clamp, a valve controlling the admission and exhaust ports of said cylinder, a rod or bar hinged to said carriage in a line parallel with its travel and connected with said valve, a trip mounted and movable on said carriage parallel with its travel, and having a retarding connection operating in opposition to the advance movement of the carriage, and a sliding connection With said hinged bar, substantially as and for the purposes set forth.

5. In a cut-off machine the combination with the saw and a reciprocating carriage provided With clamping mechanism for holding material thereon in position to be sawed, and comprising a cylinder, piston and controllingvalve, of trip mechanism comprisinga bar or rod hinged to the carriage parallel With its line of travel, and connected With said valve, an arm mounted and movable upon said carriage parallel With said rod or bar and connected by a cable or chain passing over a sheave with a Weight which opposes its advance movement, and a lever fulcrumed to said arm and having a yielding connection therewith, and a sliding connection With said rod or bar, substantially as and for the purposes set forth.

6. In a cut-off machine the combination with the saw and a reciprocating carriage, of an angular lever fulcrumed to a suitable sup- `port at one side of the carriage, a clamp pivoted to the end of said lever overhanging the carriage, a cylinder attached to said carriage and provided with a piston which is connected With the other arm of said lever, and a valve controlling the admission and exhaust ports of said cylinder and having telescoping supply andeXhaust connections,substantially as and for the purposes set forth.

7. In a cut-off machine the combination with the saw and a reciprocating carriage, of a vertically-movable clamp connected with and overhanging said carriage adjacent to the plane of the saW, a cylinder attached to said carriage and provided'with a piston which is connected with said clamp, a valve control- -ling the operation of said piston,a trip mounted and movable upon said carriage parallel with its line of travel, and having actuating connections with said valve and a retarding connection operating in opposition to the advance movement of the carriage, and a stop arranged to arrest said trip in its return movement with the carriage at the desired point, substantiallyV as and for the purposes set forth.

8. In a cut-off machine the combination With a reciprocating carriage, of an actuatingcylinder and piston connectedtherewith, and a retarding-cylinder provided With a piston also connected with said carriage and having bypassages between its opposite ends provided With oppositely-opening check-valves and with regulating-valves, substantially as and for the purposes set forth.

9. In a cut-off machine the combination with a reciprocating carriage and its actuating mechanism, of a controlling-cylinder containing a suitable retarding fluid and provided With a piston which is connected with said carriage, and by-passages connecting the ends of said cylinder and provided With oppositely-closing check-valves and with regu- 1rating-valves, substantially as and for the purposes set forth.

10. In a cut-off machine the combination With the saw, of a reciprocating carriage provided With a vertically-movable clamp, an arm or part movable horizontally upon said carriage in a direction parallel with its travel, means tending to hold said arm or part from advancing with the carriage, a stationary stop arranged to engage and arrest said arm or part when the carriage approaches its starting-point in its return movement, and means for operating said clamp controlled by said arm, said arm and clamp cooperating to hold the timber rmly in place upon the carriage While it is being cut off by the saw, substantially as and for the purposes set forth.

In testimony that I claim the foregoing as my own I affix my signaturer in presence of tWo witnesses.

FRANK CHALLONER.

`itnessesz E. R. I-IIcKs, W. W. KIMBALL.

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